A. 25°C
B. 37°C
C. 50°C
D. 60°C
Related Mcqs:
- In self-cure acrylic resin, activator is_____________?
A. Toluidine
B. Quaternary ammonium compound
C. Benzoyl peroxide
D. Tertiary amine - The % of free monomer in a heat – cured acrylic resin is_______________?
A. 3% to 5%
B. 8% to 10%
C. 0.2% to 0.5%
D. 0.6% to 0.8% - Which of the following may result if an excessive amount of monomer is incorporated into an acrylic resin mixture ?
A. Excessive expansion
B. Low impact strength
C. Excessive shrinkage
D. Excessive brittleness - To prevent porosity in self-cure acrylic resin, curing should be carried in______________?
A. Cold water
B. Hot water
C. Under tap water
D. Under vacuum pressure - One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?
A. Prevent galvanic action
B. Are practically insoluble in oral fluids
C. Adapt to the walls of the cavity better
D. Have a higher coefficient of thermal expansion - Along with polymerisation shrinkage, one of the major disadvantages of polymethyl methacrylate as denture base resin are its poor_____________?
A. Biological properties
B. Thermal properties
C. Mechanical properties
D. Esthetic properties - The enzyme that splits hydrogen peroxide into water and oxygen is_____________?
A. Cytochromes
B. Cytochrome P 450
C. Super oxide dismutase
D. Catalase - Insufficient closure of the flasks during packing of denture base resin can result in_____________?
A. Poor colour stability
B. Less polymerization shrinkage
C. Increase in vertical dimension
D. Decrease in vertical dimension - Insufficient closure of the flasks during packing of denture base resin can result in_____________?
A. Poor colour stability
B. Less polymerization shrinkage
C. Increase in vertical dimension
D. Decrease in vertical dimension - The most important disadvantage of acrylic denture base is_______________?
A. porosity
B. Shrinkage
C. Tooth breakage
D. Water absorption
